10 red cards and 10 and black cards are placed in a bag. You choose one card and then another without replacing the first card.
1 answer:
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Let k be the scale factor relating two similar prisms 
and 
, such that for corresponding parts of prisms and (for heights, in particular) we have 
. In our case 
.
For surfaces area we have
.
So, the right answer is 4:25 (choice B)
For surfaces area we have
So, the right answer is 4:25 (choice B)
Try this solution:
distance=
answer: 7
distance=
answer: 7